immediate dentures FINAL

immediate denture

denture is fabricated before the extraction of teeth, followed by removal of teeth and denture inserted immediately thereafter.

interim/temporary immediate denture

immediate denture that will need to be replaced with definitive dentures 9 to 12 months later

conventional immediate dentures

Posterior teeth are extracted and the surgical area is allowed to heal. Dentures are constructed with the anterior teeth present. Then Anterior teeth are extracted and the denture is inserted immediately after surgery

true

T/F conventional immediate dentures are considererd a definitive prrosthesis

immediate overdenture

immediate denture with one orr more retained teeth providing support

irreversible hydrocolloid such as alginate

__________ is an ideal impression material to make a final impression for immediate

denture when a patient presents with severe periodontal disease and mobile teeth.

true

T/F When the only remaining natural in the arch are the maxillary central & laterals and they

present with class II+/ III mobility, it is most appropriate to use tissue contacts as a stop area

during the impression procedure.

2mm

As a rule, it is best to assume the alveolar bone will be about _____ from the gingival margin of the teeth, unless there is extreme bone loss. This will avoid over trimming of the master cast while setting teeth and ensure the denture will seat properly after the teeth are extracted.

true

T/F The retained roots of the teeth in immediate OVERDENTURES provide STABILITY and SUPPORT

c

The CONTRAINDICATION for immediate OVERDENTURES or conventional overdentures include the following EXCEPT:

a. Reduced inter-arch space

b. Inadequate crown: root ration of the remaining teeth

c. When mandibular canines are remaining in one arch opposing natural

dentition in the opposing arch

1,3,4,5

Which of the following are indications for CONVENTIONAL immediate dentures:

1. Posterior teeth can be removed, and the ridge allowed to heal, for a minimum of six weeks, without causing patient undue discomfort

2. Anterior tooth mobility

3. The anterior teeth have sufficient bone support remaining to maintain vertical dimension of occlusion and mastication when the posterior teeth are removed

4. Duplication of anterior tooth position is desired

5. The patient is unable, or unwilling, to remain totally edentulous during a healing period prior to construction of conventional dentures.

1,2,3,5,6

which of the following are indications for INTERIM immediate dentures

1. Full mouth extractions are required. Whenever more than 6 teeth per arch are being removed, just prior to the insertion of an immediate denture

2. Anterior tooth mobility

3. Anterior teeth are currently replaced with a removable partial denture

4. Duplication of anterior tooth position is desired

5. Medical complications. Patient will only undergo 1 surgery

6. Rapid results desired

2,3,4

which of the following are indications for immediate OVERDENTURES:

1. Class III Mobile abutment teeth

2. Abutment teeth have adequate periodontal health. Minimum of 5 -7mm of root with bone support

3. opposing natural dentition

4. patient fearful of being edentulous

e

3. The selection criteria for the overdenture abutments includes:

a. Adequate attached gingiva, about 2mm

b. Minimal sulcus depth

c. Adequate bones support with crown:root ratio 1:2

d. Minimal undercuts in the vestibule

e: all of the above

2mm

When planning a Maxillary overdenture, the desired length of abutment is __ for

maxillary anterior teeth

false

T/F The retained teeth that serve as overdenture abutments must always be restored with

cast coping

true

T/F Interim immediate dentures require considerable maintenance and aftercare during

the post- insertion period.

rinse (with water), disinfect, wrap in moist/wet paper towel

What is the proper treatment of alginate impression

24hrs, 3 day, one week, as needed temporary relines

Typical immediate denture postoperative care includes

9-12 months

Following the healing period,the INTERIM immediate complete denture is replaced with a CONVENTIONAL COMPLETE denture after a period of _______

required prior to treatment

Consent for immediate denture is _______

d

The following is/ are indication of a direct (chairside) reline (hard or soft)

a. Correction of undesirable tissue contours is required

b. 1-6 months, post insertions for ICDs

c. Temporary improvement in fit desirable

d. all of the above

c

The CONTRAINDICATIONS for DIRECT HARD RELINES include the following EXCEPT

a. When the vertical dimension need to be increase by more than 3mm

b. Poor teeth position for speech and function

c. Test additions to the denture to observe effect desired

d. There are many broke teeth of excessively worn teeth

1,2,3,4

which of the following are INDICATIONS for DIRECT RELINES:

1. To improve the fit until an indirect reline or remake can be accomplished.

2. In immediate dentures, to correct for ridge resorption during the healing period.

3. To improve denture fit to aid in treatment of an adverse tissue response.

4. Occasionally for definitive relining of removable partial dentures.

hard to polish and serve only short perriod (6 weeks)

disadvantages of direct SOFT liners

6 weeks

how long do soft liners last before deteriorating?

false

T/F Rebasing of the denture is a chairside procedure which is usually indicated to improve the stability of the denture.

maxillary

Generally, when both maxillary and mandibular complete dentures need to be relined Its best to do the ______ reline first

posterior, 10-12 weeks

in conventional immediate dentures the ______ teeth are extracted first and allowed to heal for _____

9-12 months

HARD reline of CONVENTIONAL immediate dentures is usually done at ____

5-6mm

minimum interarch clearance needed for base thickness

false (not possible)

T/F anterior try-ins are necessary when fabricating immediate deenture

endo treated

prior to immediate overdenture placement abutment teeth must be

retention

immediate OVERDENTURES provide support and stability but NOT ______

5-7mm

requirement for MINIMUM abutement BONE support

1:2 (after reduction)

ideal Crown-Root ratio for abutment teeth with overdenture

2mm

MINIMUM attached gingiva required for OVERDENTURE abutement teeth

canines or premolar

PREFFERED abutment teeth for overdentures

conventional

which immediate denture requires two surgical appointments?

interim

which immediate denture requires only one surgical appointment?

6

rapid ridge changes are expected in the first _____ weeks after extraction

interim

which immediate denture is preferred if the patient wants esthetic modifications to their natural dentition

reline

resurfacing the tissue side of the denture

rebase

replacement of entire denture base material

1mm

for reline, vertical dimension alteration must be ≤___

true

T/F teeth with mobility II are aceptable for use as abutmenets with overdentures if there is adequate bone support

maintaining centric relation

which principle is MOST critical in immediate denture therapy

Insertion timing

The term 'immediate' in immediate dentures refers to:

final impression

Alginate for interim dentures serves as:

conventional

for which immediate dentures is there a bite registration take for maxillomandibularr relationship mounting on articulator

3mm

When planning a MANDIBULAR overdenture, the desired length of abutment is __ for

MANDIBULAR anterior teeth

1

for interim immediate dentures temporary relines are done starting at approx. ___ week postop

lynal

choice of material for interim immediate denture soft reline

true

T/F reline is used only to solve problem of fit

RPD, interim after ridge matures, new denture doesn’t fit

indications for DIRECT HARD RELINES

recently made denture needs better fit, refitting immediate dentures, refitting older dentures

indications for INDIRECT RELINES

indirect rebase

If a denture has improper fit but has adequate VDO, occlusion, and esthetics a _____ is indications

mod. of tooth position, major occlusal descrepancy, alter VDO, extensions inadequate

CONTRAINDICATIONS for relines and rebases

fit, VDO, CR, esthetics

when deciding whether to reline/rebase a denture what should the dentist be evaluating?

1mm

when relining/rebasing of denture approximately ___ of relief should be made to the intaglio of the denturee

impregum

border molding is done using

Allow posterior ridge healing/stabilization while maintaining anterior esthetics

A core purpose of extracting posterior teeth first in a conventional immediate denture sequence is to:

a

A key contraindication to performing an indirect reline or rebase is:

A. Need to increase vertical dimension by more than ~1 mm

B. Need for minor border additions

C. Recent denture fabrication

D. Minor loss of retention from resorption

a

Which is the most accurate method to relate casts for many interim immediate denture patients (when enough teeth remain)?

A. Hand articulation of opposing casts

B. Mounting arbitrarily at an estimated VD

C. Using only a wax rim record

D. Using a facebow without a bite record

first bicuspids (when possible)

In conventional immediate dentures, which teeth may be retained temporarily to help maintain vertical dimension during healing and records

2/3 LV permadyne and 1/3 impregum F

when taking impressions for INDIRECT relines/rebases what material is used for the MANDIBULAR impression

extension, support, retention, stability, occlusion, VDO, appearance

after impressions for indirect reline or rebase the denture is reinserted into the mouth to check for:

tissue

immediate OVERDENTURE is ____ supported at the time of deliverry

2

for OVERDENTURE abutments are brought into contact with the denture at around the ___ week follow up

trim intaglio 1mm around abutment, place vent hol lingual, add resin material, seat denture

prrocess for bringing abutments into contact with denture